<script setup>
import PageContainer from '@/components/PageContainer.vue';
import { ref } from 'vue';
import { Plus } from '@element-plus/icons-vue';
import { useUserStore } from '@/stores';
import {userUploadAvatarService} from '@/api/user'
import { ElMessage } from 'element-plus'

const userStore=useUserStore()
const imgUrl=ref(userStore.user.user_pic
)
const uploadRef = ref()

const onSelectFile = (uploadFile) => {
  const reader = new FileReader()          // ① 创建读取器
  reader.readAsDataURL(uploadFile.raw)           // ② 把文件转为 Base64（Data URL 格式）
  reader.onload = () => {                  // ③ 读取完成后触发
    imgUrl.value = reader.result           // ④ 拿到结果赋值给 imgUrl 用于预览
  }
}

const onUpdateAvatar = async () => {
  await userUploadAvatarService(imgUrl.value)
  await userStore.getUser()
  ElMessage({ type: 'success', message: '更换头像成功' })
}
</script>

<template>
<page-container   title="更换头像">
    <!-- 头像部分 -->
      <el-upload
    ref="uploadRef"
    :auto-upload="false"
    class="avatar-uploader"
    :show-file-list="false"
    :on-change="onSelectFile"
  >
    <img v-if="imgUrl" :src="imgUrl" class="avatar" />
    <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
  </el-upload>

<br>
  <el-button
  @click="uploadRef.$el.querySelector('input').click()"
  type="primary"
  :icon="Plus"
  size="large"
  >选择图片</el-button
>
  <el-button type="success" :icon="Plus" @click="onUpdateAvatar" size="large">上传头像</el-button>
</page-container>
</template>


<style lang="scss" scoped>
.avatar-uploader {
  :deep() {
    .avatar {
      width: 278px;
      height: 278px;
      display: block;
    }
    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }
    .el-upload:hover {
      border-color: var(--el-color-primary);
    }
    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 278px;
      height: 278px;
      text-align: center;
    }
  }
}
</style>